Knob for lock



FIG. 1 is a perspective view of the knob for lock showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Any broken line illustration of environmental structure in the drawing is not part of the design. 

CLAIM The ornamental design for a knob for lock, as shown and described. 